const connectDB = (mongoose) => { 

   let db = mongoose.connect("mongodb://127.0.0.1:27017/myblog",(err)=>{
      if(err){
        console.log("数据库连接失败！");
      }else{
         console.log("数据库连接成功！");
      }
   });
   
};

module.exports = {
   connectDB : connectDB
};